Further clues and progress scores aedia: 1%
eternaldark: 13%
galacticchick: 1%
haruko_fixation: 5%
jilder: 1%
killertatertots: 1%
kitsunegari: 3%
lacey_may: 2%
lilmissnorti: 4%
mammatash: 17%
mia_saurus: 1%
mistious: 2%
pantmonger: 4%
polrua: 1%
splodgenoodles: 3%
willxkemp: 5%
z_dragonmaster: 1%
Still left, and some of these clues overlap:
Six supernatural: other
Five sequels
Four movies with graphic novel/comic origins
Three vampire movies
Two One Musical, two movies starring Antonio Banderas, two werewolf movies, (at least) two movies based on cult novels, two movies starring Val Kilmer
One Muppet movie, one serial killer movie, one of the original movies with a "twist", one Best Picture winner, one movie with a soundtrack of entirely Beatles songs, one animated feature
and
Directors including Quentin Tarantino, David Cronenberg, Neil Jordan, Tim Burton, Alfred Hitchcock, John Waters and Frances Ford Coppolla